/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_15-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:29:45,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:29:45,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:29:45,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:29:45,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:29:45,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:29:45,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:29:45,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:29:45,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:29:45,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:29:45,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:29:45,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:29:45,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:29:45,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:29:45,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:29:45,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:29:45,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:29:45,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:29:45,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:29:45,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:29:45,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:29:45,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:29:45,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:29:45,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:29:45,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:29:45,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:29:45,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:29:45,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:29:45,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:29:45,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:29:45,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:29:45,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:29:45,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:29:45,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:29:45,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:29:45,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:29:45,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:29:45,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:29:45,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:29:45,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:29:45,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:29:45,734 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:29:45,767 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:29:45,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:29:45,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:29:45,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:29:45,770 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:29:45,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:29:45,770 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:29:45,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:29:45,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:29:45,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:29:45,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:29:45,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:29:45,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:29:45,773 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:29:45,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:29:45,774 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:29:45,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:29:45,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:29:45,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:29:45,775 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:29:45,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:29:45,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:29:45,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:29:45,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:29:45,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:29:45,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:29:45,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:29:45,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:29:45,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:29:45,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:29:46,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:29:46,264 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:29:46,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:29:46,271 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:29:46,272 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:29:46,273 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_15-2.c [2020-09-25 14:29:46,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5e591454/f162f618aee2400f94da858bfc77503b/FLAGc225597ca [2020-09-25 14:29:46,856 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:29:46,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_15-2.c [2020-09-25 14:29:46,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5e591454/f162f618aee2400f94da858bfc77503b/FLAGc225597ca [2020-09-25 14:29:47,237 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5e591454/f162f618aee2400f94da858bfc77503b [2020-09-25 14:29:47,251 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:29:47,256 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:29:47,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:29:47,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:29:47,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:29:47,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:29:47" (1/1) ... [2020-09-25 14:29:47,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49320105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:47, skipping insertion in model container [2020-09-25 14:29:47,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:29:47" (1/1) ... [2020-09-25 14:29:47,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:29:47,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:29:47,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:29:47,529 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:29:47,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:29:47,567 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:29:47,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:47 WrapperNode [2020-09-25 14:29:47,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:29:47,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:29:47,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:29:47,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:29:47,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:47" (1/1) ... [2020-09-25 14:29:47,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:47" (1/1) ... [2020-09-25 14:29:47,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:47" (1/1) ... [2020-09-25 14:29:47,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:47" (1/1) ... [2020-09-25 14:29:47,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:47" (1/1) ... [2020-09-25 14:29:47,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:47" (1/1) ... [2020-09-25 14:29:47,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:47" (1/1) ... [2020-09-25 14:29:47,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:29:47,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:29:47,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:29:47,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:29:47,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:29:47,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:29:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:29:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 14:29:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:29:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:29:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:29:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 14:29:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:29:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:29:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:29:47,985 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:29:47,986 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 14:29:47,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:29:47 BoogieIcfgContainer [2020-09-25 14:29:47,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:29:47,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:29:47,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:29:47,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:29:47,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:29:47" (1/3) ... [2020-09-25 14:29:47,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bdfe86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:29:47, skipping insertion in model container [2020-09-25 14:29:47,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:29:47" (2/3) ... [2020-09-25 14:29:47,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bdfe86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:29:47, skipping insertion in model container [2020-09-25 14:29:47,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:29:47" (3/3) ... [2020-09-25 14:29:48,002 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_15-2.c [2020-09-25 14:29:48,018 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:29:48,028 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:29:48,056 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:29:48,093 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:29:48,094 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:29:48,094 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:29:48,094 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:29:48,094 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:29:48,095 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:29:48,095 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:29:48,095 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:29:48,129 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 14:29:48,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 14:29:48,139 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:48,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:48,140 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:48,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:48,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 14:29:48,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:48,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794976933] [2020-09-25 14:29:48,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:48,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:48,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:48,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:48,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:29:48,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:48,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-25 14:29:48,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:48,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:48,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:48,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 14:29:48,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:48,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:29:48,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:48,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:48,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:48,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:48,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:48,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:48,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:48,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:48,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:48,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:48,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:48,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:48,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:29:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:48,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:48,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:48,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:48,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:48,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:29:48,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:48,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:29:48,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:48,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:29:48,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:48,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:29:48,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794976933] [2020-09-25 14:29:48,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:29:48,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:29:48,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169699295] [2020-09-25 14:29:48,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:29:48,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:48,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:29:48,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:29:48,649 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 14:29:48,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:48,754 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 14:29:48,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:29:48,756 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 14:29:48,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:48,770 INFO L225 Difference]: With dead ends: 44 [2020-09-25 14:29:48,771 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 14:29:48,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:29:48,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 14:29:48,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 14:29:48,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 14:29:48,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 14:29:48,832 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 14:29:48,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:48,832 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 14:29:48,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:29:48,833 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 14:29:48,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 14:29:48,835 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:48,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:48,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:29:48,836 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:48,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:48,837 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 14:29:48,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:48,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141042849] [2020-09-25 14:29:48,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:48,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:48,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:49,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 14:29:49,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:49,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-25 14:29:49,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:49,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:49,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:49,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:29:49,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:49,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:49,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:49,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:49,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:49,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:49,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:29:49,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:49,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:49,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:49,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:49,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:49,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:49,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:29:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:49,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:49,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:49,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:49,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 14:29:49,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:49,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:49,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:49,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:29:49,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:49,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:49,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:29:49,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141042849] [2020-09-25 14:29:49,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:29:49,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:29:49,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680399920] [2020-09-25 14:29:49,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:29:49,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:49,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:29:49,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:29:49,148 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 14:29:49,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:49,242 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 14:29:49,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:29:49,245 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 14:29:49,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:49,246 INFO L225 Difference]: With dead ends: 36 [2020-09-25 14:29:49,246 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 14:29:49,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:29:49,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 14:29:49,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 14:29:49,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 14:29:49,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 14:29:49,265 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 14:29:49,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:49,266 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 14:29:49,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:29:49,266 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 14:29:49,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 14:29:49,268 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:49,268 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:49,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:29:49,269 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:49,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:49,269 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 14:29:49,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:49,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323987320] [2020-09-25 14:29:49,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:49,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:49,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:51,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 14:29:51,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:29:51,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1903 [2020-09-25 14:29:51,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:51,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:51,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:51,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:29:51,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:29:51,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:51,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:51,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:51,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:51,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:51,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:29:51,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:51,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:51,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:51,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:51,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:51,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:51,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:29:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:51,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:51,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:29:51,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:29:51,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-25 14:29:51,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:51,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:51,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:51,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:29:51,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:29:51,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:51,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:51,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:51,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:51,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:51,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:29:51,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:51,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:51,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:51,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:51,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:51,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:51,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:29:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:51,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:51,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:51,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:51,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:29:51,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:51,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:51,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:51,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:51,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:51,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:51,482 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 14:29:51,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323987320] [2020-09-25 14:29:51,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:51,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 14:29:51,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549911729] [2020-09-25 14:29:51,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:29:51,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:51,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:29:51,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:29:51,485 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-09-25 14:29:51,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:51,567 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-25 14:29:51,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:29:51,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 14:29:51,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:51,570 INFO L225 Difference]: With dead ends: 44 [2020-09-25 14:29:51,570 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 14:29:51,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:29:51,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 14:29:51,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-25 14:29:51,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 14:29:51,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-25 14:29:51,582 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-25 14:29:51,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:51,583 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-25 14:29:51,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:29:51,583 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-25 14:29:51,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 14:29:51,585 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:51,585 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:51,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:29:51,585 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:51,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:51,586 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 14:29:51,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:51,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210150391] [2020-09-25 14:29:51,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:51,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:53,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 14:29:53,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:29:53,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1723 [2020-09-25 14:29:53,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:53,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:53,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:53,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 14:29:53,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 14:29:53,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:53,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:53,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:53,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:53,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:53,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:29:53,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:53,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:53,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:53,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:53,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:53,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:53,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:29:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:53,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:53,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 14:29:53,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:53,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 14:29:53,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:53,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:53,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:53,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:29:53,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 14:29:53,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:53,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:53,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:53,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:53,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:53,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 14:29:53,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:53,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:53,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:53,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:53,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:29:53,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:53,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:29:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:53,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:53,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:53,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:53,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 14:29:53,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:53,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:53,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:53,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:29:53,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:53,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:53,604 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 14:29:53,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1210150391] [2020-09-25 14:29:53,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:53,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 14:29:53,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871389361] [2020-09-25 14:29:53,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:29:53,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:53,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:29:53,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:29:53,609 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 7 states. [2020-09-25 14:29:53,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:53,790 INFO L93 Difference]: Finished difference Result 76 states and 109 transitions. [2020-09-25 14:29:53,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:29:53,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 14:29:53,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:53,798 INFO L225 Difference]: With dead ends: 76 [2020-09-25 14:29:53,799 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 14:29:53,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:29:53,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 14:29:53,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2020-09-25 14:29:53,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 14:29:53,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-09-25 14:29:53,821 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 35 [2020-09-25 14:29:53,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:53,821 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-09-25 14:29:53,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:29:53,822 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-09-25 14:29:53,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 14:29:53,832 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:53,832 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:53,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:29:53,832 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:53,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:53,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 1 times [2020-09-25 14:29:53,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:53,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894315320] [2020-09-25 14:29:53,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:53,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:53,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:54,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:54,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:54,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:57,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:58,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:58,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 14:29:58,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:29:58,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 14:29:58,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:58,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:58,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:58,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:29:58,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 14:29:58,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:58,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:58,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:58,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:58,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:58,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:58,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:29:58,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:58,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:58,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:58,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:58,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:29:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:58,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:58,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:58,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:58,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:59,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:59,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:00,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:03,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:03,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 14:30:03,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:30:03,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 14:30:03,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:03,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:03,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:30:03,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:30:03,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 14:30:03,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:03,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:03,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:03,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:04,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:30:04,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:30:04,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 14:30:04,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:04,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:04,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:04,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:04,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:30:04,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:04,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:04,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:04,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:04,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:04,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:30:04,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:04,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:04,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:04,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:04,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:30:04,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:30:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:04,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:04,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:04,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:04,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:30:04,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:04,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:04,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:04,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:04,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:04,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:30:04,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:30:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:04,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:04,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:04,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:04,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 14:30:04,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:04,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:04,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:30:04,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:04,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:30:04,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:30:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 14:30:04,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894315320] [2020-09-25 14:30:04,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:30:04,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 14:30:04,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379791100] [2020-09-25 14:30:04,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:30:04,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:30:04,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:30:04,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:30:04,141 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 7 states. [2020-09-25 14:30:04,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:30:04,277 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2020-09-25 14:30:04,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:30:04,280 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 14:30:04,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:30:04,285 INFO L225 Difference]: With dead ends: 52 [2020-09-25 14:30:04,285 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 14:30:04,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:30:04,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 14:30:04,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2020-09-25 14:30:04,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 14:30:04,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-09-25 14:30:04,297 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 51 [2020-09-25 14:30:04,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:30:04,297 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-09-25 14:30:04,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:30:04,298 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-09-25 14:30:04,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 14:30:04,301 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:30:04,301 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:30:04,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:30:04,302 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:30:04,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:30:04,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1086233509, now seen corresponding path program 2 times [2020-09-25 14:30:04,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:30:04,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112642611] [2020-09-25 14:30:04,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:30:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:04,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:04,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:06,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:06,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:07,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:09,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 14:30:09,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 14:30:09,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 14:30:09,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:09,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:09,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:30:09,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:30:09,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 14:30:09,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:09,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:30:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:09,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:09,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:30:09,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:09,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:30:09,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:09,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:09,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:09,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:09,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:09,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:09,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:30:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:09,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:09,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:11,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:11,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:11,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:11,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:11,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:11,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:11,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:14,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:14,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 14:30:14,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 14:30:14,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 14:30:14,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:14,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:14,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:30:14,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:30:14,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 14:30:14,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:14,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:14,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:14,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:14,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:14,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:30:14,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:30:14,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 14:30:14,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:14,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:14,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:30:14,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:14,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:30:14,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:14,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:14,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:14,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:14,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:14,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:14,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:30:14,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:14,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:14,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:30:14,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:14,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:30:14,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:14,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:30:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:14,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:14,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:14,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:14,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:14,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:30:14,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:14,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:14,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:14,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:14,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:30:14,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:14,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:30:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:14,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:14,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:14,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:14,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:14,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:14,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:15,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:15,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:16,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 14:30:16,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:30:16,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1594 [2020-09-25 14:30:16,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:16,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:16,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:30:16,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:30:16,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 14:30:16,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:16,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:16,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:16,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:30:16,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:30:16,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 14:30:16,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:16,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:30:16,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:16,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:16,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:16,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:16,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:16,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:30:16,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:16,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:16,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:16,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:16,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:16,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:16,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:30:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:16,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:16,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:16,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:16,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:30:16,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:16,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:16,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:16,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:16,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:16,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:16,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:30:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:16,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:16,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:16,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:16,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:30:16,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:16,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:16,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:16,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:16,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:30:16,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:16,248 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 56 proven. 67 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-09-25 14:30:16,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112642611] [2020-09-25 14:30:16,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:30:16,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 14:30:16,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188030621] [2020-09-25 14:30:16,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:30:16,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:30:16,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:30:16,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:30:16,251 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 9 states. [2020-09-25 14:30:16,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:30:16,416 INFO L93 Difference]: Finished difference Result 92 states and 126 transitions. [2020-09-25 14:30:16,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 14:30:16,417 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2020-09-25 14:30:16,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:30:16,419 INFO L225 Difference]: With dead ends: 92 [2020-09-25 14:30:16,419 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 14:30:16,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:30:16,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 14:30:16,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-25 14:30:16,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 14:30:16,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2020-09-25 14:30:16,444 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 85 [2020-09-25 14:30:16,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:30:16,444 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2020-09-25 14:30:16,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:30:16,445 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2020-09-25 14:30:16,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 14:30:16,453 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:30:16,453 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:30:16,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 14:30:16,454 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:30:16,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:30:16,454 INFO L82 PathProgramCache]: Analyzing trace with hash 501566307, now seen corresponding path program 3 times [2020-09-25 14:30:16,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:30:16,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [900032116] [2020-09-25 14:30:16,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:30:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:16,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:16,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:19,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:19,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:21,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:21,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 14:30:21,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 14:30:21,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:30:21,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:21,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:21,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:30:21,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 14:30:21,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 14:30:21,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:21,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:30:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:21,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:21,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:21,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:30:21,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:21,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:30:21,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:21,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:21,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:21,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:21,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:21,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:21,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:30:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:21,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:21,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:21,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:21,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:21,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:21,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:22,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:22,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:26,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:26,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 14:30:26,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:30:26,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 14:30:26,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:26,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:30:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:30:26,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 14:30:26,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:26,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:26,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:26,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:26,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:27,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:30:27,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:30:27,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-09-25 14:30:27,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:27,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:27,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:30:27,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:27,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 14:30:27,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:27,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:27,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:27,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:27,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:27,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 14:30:27,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:27,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:27,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:30:27,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:27,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:30:27,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:27,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:30:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:27,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:27,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:27,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:27,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 14:30:27,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:27,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:27,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:27,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:27,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:30:27,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:27,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 14:30:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:27,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:28,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:28,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 14:30:28,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:30:28,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1777 [2020-09-25 14:30:28,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:28,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:28,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:30:28,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:30:28,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 14:30:28,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:28,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:28,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:28,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:28,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:30:28,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:28,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 14:30:28,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:28,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:28,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:28,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:28,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:30:28,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:29,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:29,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:29,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:29,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:29,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:30:29,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:29,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:29,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:29,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:29,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:29,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:29,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:30:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:29,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:29,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:29,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:29,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:30:29,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:29,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:29,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:29,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:29,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:29,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:29,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 14:30:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:29,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:29,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:29,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:29,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:30:29,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:29,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:29,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:29,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:29,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:30:29,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:29,048 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 55 proven. 74 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-09-25 14:30:29,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [900032116] [2020-09-25 14:30:29,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:30:29,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 14:30:29,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506659709] [2020-09-25 14:30:29,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:30:29,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:30:29,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:30:29,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:30:29,050 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand 8 states. [2020-09-25 14:30:29,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:30:29,308 INFO L93 Difference]: Finished difference Result 113 states and 145 transitions. [2020-09-25 14:30:29,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:30:29,308 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 87 [2020-09-25 14:30:29,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:30:29,310 INFO L225 Difference]: With dead ends: 113 [2020-09-25 14:30:29,310 INFO L226 Difference]: Without dead ends: 71 [2020-09-25 14:30:29,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:30:29,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-25 14:30:29,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 63. [2020-09-25 14:30:29,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 14:30:29,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2020-09-25 14:30:29,325 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 87 [2020-09-25 14:30:29,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:30:29,326 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2020-09-25 14:30:29,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:30:29,326 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2020-09-25 14:30:29,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-09-25 14:30:29,328 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:30:29,328 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:30:29,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 14:30:29,329 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:30:29,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:30:29,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1607002557, now seen corresponding path program 4 times [2020-09-25 14:30:29,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:30:29,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2104604985] [2020-09-25 14:30:29,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:30:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:29,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:30,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:31,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:31,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:31,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:31,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:31,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:31,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:31,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:31,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:32,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:32,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:32,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:32,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:32,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:34,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-25 14:30:34,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-09-25 14:30:34,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 14:30:34,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:34,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:34,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:30:34,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:30:34,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 14:30:34,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:34,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:30:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:34,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:34,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:30:34,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:34,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:30:34,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:34,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:34,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:34,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:30:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:34,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:34,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:35,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:35,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking...